In this article, a new nonlinear four-dimensional hyperchaotic model is presented. The
dynamical aspects of the complex system are analyzed covering equilibrium points, linear …

In this article, we study the dynamics of a Maize streak virus (MSV) epidemic model by using
the Caputo fractional derivative. Firstly, we define the dynamics of the given fractional-order …

This research aims to use fractional operators to analyze a fractional-order model of a
coronavirus disease of 2019 (COVID-19). We use some basic results and definitions from …

In this paper, we investigate the existence and uniqueness of fractional differential equations
(FDEs) by using the fixed-point theory (FPT). We discuss also the Ulam–Hyers–Rassias …

Differential equations with fractional derivative are being extensively used in the modelling
of the transmission of many infective diseases like HIV, Ebola, and COVID‐19. Analytical …

We present the existence of solutions for sequential Caputo–Hadamard fractional differential
equations (SC-HFDE) with fractional boundary conditions (FBCs). Known fixed-point …

We propose a solution to the symmetric nonlinear Ψ-Caputo fractional integro differential
equations involving non-instantaneous impulsive boundary conditions. We investigate the …

We establish sufficient conditions for the existence of solutions of an integral boundary value
problem for a Ψ-Hilfer fractional integro-differential equations with non-instantaneous …

This research uses the Laplace transform method to analyze a coupled system of (p, q)-
Caputo fractional differential equations, employing the (p, q)-generalized Caputo derivative …

In this paper, we study the existence and uniqueness of solutions for the boundary value
problem of Hilfer-Hadamard sequential fractional differential equations via fixed point …